AirHint found the following cheapest return flights from Perth (PER) to Seoul (ICN) in December 2025 (see full year).

Return flights

12 Dec - 15 Dec	Batik Air Malaysia
16 Dec - 22 Dec	AirAsia
13 Dec - 18 Dec	AirAsia
27 Dec - 31 Dec	AirAsia
18 Dec - 21 Dec	TransNusa
14 Dec - 21 Dec	AirAsia
16 Dec - 21 Dec	AirAsia
16 Dec - 24 Dec	AirAsia
17 Dec - 22 Dec	AirAsia
16 Dec - 26 Dec	AirAsia
29 Dec - 14 Jan	AirAsia
14 Dec - 17 Jan	Scoot
31 Dec - 09 Jan	AirAsia
25 Dec - 01 Jan	AirAsia
16 Dec - 08 Jan	AirAsia
13 Dec - 07 Jan	AirAsia
31 Dec - 04 Jan	AirAsia
18 Dec - 17 Jan	AirAsia
24 Dec - 12 Jan	AirAsia
24 Dec - 11 Jan	AirAsia

Also check the deals for one-way flights from Perth to Seoul in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Perth to Seoul in December from $661

Return flights